Washed ashore on an uncharted island with his dog-like companion Chappy, young Papuwa is adopted by Kamui, a resident owl. Clad in a grass skirt, he wields extraordinary strength, breathes underwater for three hours, and masters unconventional combat techniques like the Porcuface Kick—launching porcupines at opponents—and the Tama-the-Tadpole Kick.

His destiny intertwines with the red stone, a mystical artifact symbolizing hope, marking him as its sole heir. This contrasts with Chappy’s blue stone of desire, stolen from Shintaro of the Ganma Army. Papuwa’s carefree island life is punctuated by clashes with mercenaries seeking the stones. Pragmatic and survival-driven, he commands Liquid, a former Ganma soldier turned housemaid, through coercion and physical discipline, often acting on simple motivations like hunger.

Despite adversarial beginnings, Papuwa befriends Shintaro, the Ganma commander, and navigates escalating conflicts between the stones’ opposing clans. His core traits—resourcefulness, physical prowess, and indifference to authority—persist as his role expands. The sequel series reaffirms his central status, maintaining his legacy amid uncharted challenges.